STR_AS_OUT_IF_ALT1 301 drivers/usb/gadget/function/f_uac1.c [STR_AS_OUT_IF_ALT1].s = "Playback Active", STR_AS_OUT_IF_ALT1 531 drivers/usb/gadget/function/f_uac1.c as_out_interface_alt_1_desc.iInterface = us[STR_AS_OUT_IF_ALT1].id;